官术网_书友最值得收藏!

ABSTRACT

An area must be accompanied by the development of resource consumption and pollutant emissions,from the perspective of carrying capacity research,there is a threshold of environmental bearing capacity.The purpose of this book is to clarify the current situation of deficit and surplus in the ecological environment of Beijing-Tianjin-Hebei,and to propose measures and suggestions for improvement.In order to achieve research,ecological footprint method is used to reveal that how much of the natural resources has been used in beijing-tianjin-hebei region and ecological carrying capacity comprehensive index method is used to reflect the natural products and services provided by the ability,ultimately through the difference between the two reactions ecological deficit or surplus,to evaluate the status and trend of the ecological environment of the Beijing-Tianjin-Hebei region,the advantage of the method can be from two angles to relative actual resource environmental bearing capacity.The conclusion of the final study is that the average ecological carrying capacity of Beijing is always lower than that of other regions.the limited supply of natural resources lead to the long-term ecological deficit phenomenon,the ecological deficit is reduced year by year in Beijing,Beijing's social and economic development in recent years and the contradictory relationship between the natural resources is gradually ease;The average ecological carrying capacity of Tianjin is lower than that of other regions.Due to the limited supply of natural resources lead to the phenomenon of long-term ecological deficit;The consumption of natural resources in hebei province mainly depend on coal,oil,energy and agricultural production biological resource consumption,development model still presents the same as in 2010 through the consumption of natural resources of stock to make up for a lack of ecological carrying capacity.Although the overall characteristics of Hebei province's consumption of natural resources have not changed significantly,its internal structure has changed to some extent.In addition,in the urban area of Beijing-Tianjin-Hebei,the air quality has made great progress in recent years under the control of air quality.From the above analysis of water resources,we find that the water ecological footprint in Beijing-Tianjin-Hebei region is generally in deficit,of which Beijing region being the most serious,followed by Tianjin and Hebei.

主站蜘蛛池模板: 瓦房店市| 军事| 方城县| 达拉特旗| 博湖县| 西城区| 富民县| 宣威市| 平原县| 迁西县| 阿巴嘎旗| 资兴市| 阳新县| 南丰县| 桦甸市| 麻江县| 托克托县| 马公市| 松滋市| 阿图什市| 神农架林区| 张家港市| 牙克石市| 洛阳市| 城固县| 克山县| 常宁市| 应用必备| 葫芦岛市| 庆元县| 白河县| 巴塘县| 峨山| 长子县| 阿拉善右旗| 沐川县| 观塘区| 深泽县| 清苑县| 津南区| 恭城|